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<div class="header">
  <div class="headertitle"><div class="title">usb_dpram.h</div></div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span> </div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="preprocessor">#ifndef _HARDWARE_STRUCTS_USB_DPRAM_H</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="preprocessor">#define _HARDWARE_STRUCTS_USB_DPRAM_H</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="preprocessor">#include &quot;<a class="code" href="address__mapped_8h.html">hardware/address_mapped.h</a>&quot;</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="preprocessor">#include &quot;hardware/regs/usb.h&quot;</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span> </div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment">// Reference to datasheet: https://datasheets.raspberrypi.com/rp2350/rp2350-datasheet.pdf#tab-registerlist_usb</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment">//</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment">// The _REG_ macro is intended to help make the register navigable in your IDE (for example, using the &quot;Go to Definition&quot; feature)</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment">// _REG_(x) will link to the corresponding register in hardware/regs/usb.h.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment">//</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment">// Bit-field descriptions are of the form:</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment">// BITMASK [BITRANGE] FIELDNAME (RESETVALUE) DESCRIPTION</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span> </div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="comment">// 0-15</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="preprocessor">#define USB_NUM_ENDPOINTS 16</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="comment">// allow user to restrict number of endpoints available to save RAN</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span><span class="preprocessor">#ifndef USB_MAX_ENDPOINTS</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="preprocessor">#define USB_MAX_ENDPOINTS USB_NUM_ENDPOINTS</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="comment">// 1-15</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span><span class="preprocessor">#define USB_HOST_INTERRUPT_ENDPOINTS (USB_NUM_ENDPOINTS - 1)</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span> </div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="comment">// Endpoint buffer control bits</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="preprocessor">#define USB_BUF_CTRL_FULL      0x00008000u</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="preprocessor">#define USB_BUF_CTRL_LAST      0x00004000u</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span><span class="preprocessor">#define USB_BUF_CTRL_DATA0_PID 0x00000000u</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="preprocessor">#define USB_BUF_CTRL_DATA1_PID 0x00002000u</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span><span class="preprocessor">#define USB_BUF_CTRL_SEL       0x00001000u</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="preprocessor">#define USB_BUF_CTRL_STALL     0x00000800u</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="preprocessor">#define USB_BUF_CTRL_AVAIL     0x00000400u</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span><span class="preprocessor">#define USB_BUF_CTRL_LEN_MASK  0x000003FFu</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="preprocessor">#define USB_BUF_CTRL_LEN_LSB   0</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="comment">// ep_inout_ctrl bits</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span><span class="preprocessor">#define EP_CTRL_ENABLE_BITS (1u &lt;&lt; 31u)</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="preprocessor">#define EP_CTRL_DOUBLE_BUFFERED_BITS (1u &lt;&lt; 30)</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="preprocessor">#define EP_CTRL_INTERRUPT_PER_BUFFER (1u &lt;&lt; 29)</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span><span class="preprocessor">#define EP_CTRL_INTERRUPT_PER_DOUBLE_BUFFER (1u &lt;&lt; 28)</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span class="preprocessor">#define EP_CTRL_INTERRUPT_ON_NAK (1u &lt;&lt; 16)</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="preprocessor">#define EP_CTRL_INTERRUPT_ON_STALL (1u &lt;&lt; 17)</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="preprocessor">#define EP_CTRL_BUFFER_TYPE_LSB 26u</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span><span class="preprocessor">#define EP_CTRL_HOST_INTERRUPT_INTERVAL_LSB 16u</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span> </div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="preprocessor">#define USB_DPRAM_SIZE 4096u</span></div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="comment">// PICO_CONFIG: USB_DPRAM_MAX, Set amount of USB RAM used by USB system, min=0, max=4096, default=4096, group=hardware_usb</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span><span class="comment">// Allow user to claim some of the USB RAM for themselves</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><span class="preprocessor">#ifndef USB_DPRAM_MAX</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span><span class="preprocessor">#define USB_DPRAM_MAX USB_DPRAM_SIZE</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span> </div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span><span class="comment">// Define maximum packet sizes</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span><span class="preprocessor">#define USB_MAX_ISO_PACKET_SIZE 1023</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span><span class="preprocessor">#define USB_MAX_PACKET_SIZE 64</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span> </div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span><span class="keyword">typedef</span> <span class="keyword">struct </span>{</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>    <span class="comment">// 4K of DPSRAM at beginning. Note this supports 8, 16, and 32 bit accesses</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>    <span class="keyword">volatile</span> uint8_t setup_packet[8]; <span class="comment">// First 8 bytes are always for setup packets</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>    <span class="comment">// Starts at ep1</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>    <span class="keyword">struct </span>usb_device_dpram_ep_ctrl {</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>        io_rw_32 in;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>        io_rw_32 out;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span>    } ep_ctrl[USB_NUM_ENDPOINTS - 1];</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span> </div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>    <span class="comment">// Starts at ep0</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span>    <span class="keyword">struct </span>usb_device_dpram_ep_buf_ctrl {</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>        io_rw_32 in;</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>        io_rw_32 out;</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span>    } ep_buf_ctrl[USB_NUM_ENDPOINTS];</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>    <span class="comment">// EP0 buffers are fixed. Assumes single buffered mode for EP0</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>    uint8_t ep0_buf_a[0x40];</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>    uint8_t ep0_buf_b[0x40];</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span> </div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>    <span class="comment">// Rest of DPRAM can be carved up as needed</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>    uint8_t epx_data[USB_DPRAM_MAX - 0x180];</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span>} <a class="code hl_struct" href="structusb__device__dpram__t.html">usb_device_dpram_t</a>;</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span> </div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="keyword">static_assert</span>(<span class="keyword">sizeof</span>(<a class="code hl_struct" href="structusb__device__dpram__t.html">usb_device_dpram_t</a>) == USB_DPRAM_MAX, <span class="stringliteral">&quot;&quot;</span>);</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="keyword">static_assert</span>(offsetof(<a class="code hl_struct" href="structusb__device__dpram__t.html">usb_device_dpram_t</a>, epx_data) == 0x180, <span class="stringliteral">&quot;&quot;</span>);</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span> </div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="keyword">typedef</span> <span class="keyword">struct </span>{</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span>    <span class="comment">// 4K of DPSRAM at beginning. Note this supports 8, 16, and 32 bit accesses</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span>    <span class="keyword">volatile</span> uint8_t setup_packet[8]; <span class="comment">// First 8 bytes are always for setup packets</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span> </div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span>    <span class="comment">// Interrupt endpoint control 1 -&gt; 15</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span>    <span class="keyword">struct </span>usb_host_dpram_ep_ctrl {</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span>        io_rw_32 ctrl;</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span>        io_rw_32 spare;</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span>    } int_ep_ctrl[USB_HOST_INTERRUPT_ENDPOINTS];</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span> </div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>    io_rw_32 epx_buf_ctrl;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span>    io_rw_32 _spare0;</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span> </div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span>    <span class="comment">// Interrupt endpoint buffer control</span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>    <span class="keyword">struct </span>usb_host_dpram_ep_buf_ctrl {</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span>        io_rw_32 ctrl;</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span>        io_rw_32 spare;</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span>    } int_ep_buffer_ctrl[USB_HOST_INTERRUPT_ENDPOINTS];</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span> </div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span>    io_rw_32 epx_ctrl;</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span> </div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span>    uint8_t _spare1[124];</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span> </div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span>    <span class="comment">// Should start at 0x180</span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span>    uint8_t epx_data[USB_DPRAM_MAX - 0x180];</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span>} <a class="code hl_struct" href="structusb__host__dpram__t.html">usb_host_dpram_t</a>;</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span> </div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="keyword">static_assert</span>(<span class="keyword">sizeof</span>(<a class="code hl_struct" href="structusb__host__dpram__t.html">usb_host_dpram_t</a>) == USB_DPRAM_MAX, <span class="stringliteral">&quot;&quot;</span>);</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="keyword">static_assert</span>(offsetof(<a class="code hl_struct" href="structusb__host__dpram__t.html">usb_host_dpram_t</a>, epx_data) == 0x180, <span class="stringliteral">&quot;&quot;</span>);</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span> </div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="preprocessor">#define usb_dpram ((usb_device_dpram_t *)USBCTRL_DPRAM_BASE)</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="preprocessor">#define usbh_dpram ((usb_host_dpram_t *)USBCTRL_DPRAM_BASE)</span></div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span> </div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="keyword">static_assert</span>( USB_HOST_INTERRUPT_ENDPOINTS == 15, <span class="stringliteral">&quot;&quot;</span>);</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span> </div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="preprocessor">#endif </span><span class="comment">// _HARDWARE_STRUCTS_USB_DPRAM_H</span></div>
<div class="ttc" id="aaddress__mapped_8h_html"><div class="ttname"><a href="address__mapped_8h.html">address_mapped.h</a></div></div>
<div class="ttc" id="astructusb__device__dpram__t_html"><div class="ttname"><a href="structusb__device__dpram__t.html">usb_device_dpram_t</a></div><div class="ttdef"><b>Definition:</b> usb_dpram.h:66</div></div>
<div class="ttc" id="astructusb__host__dpram__t_html"><div class="ttname"><a href="structusb__host__dpram__t.html">usb_host_dpram_t</a></div><div class="ttdef"><b>Definition:</b> usb_dpram.h:93</div></div>
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